1994 Buick Century poor performance

1994 BUICK CENTURY
156,000 MILES • 6 CYL • FWD • AUTOMATIC
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FFXBOUND
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My 1994 Buick Century wagon has 156K. Last week, while rainiing, I noticed that the vehicle would start to bog down while driving the interstate at 65mph. As I started to climb a hill, the more I accelerated, the more the vehicle slowed. If I cut back on the gas, the vehicle ran normal. This would only happen intemitantly and only when raining, I think. The code reader said P0131 error, ox2 sensor but I was wondering if the fule filter or pump can be bad or my wiring? It also hesitaed really bad from a dead stop, hot or cold. Where are the ox2 sensor and filters located?
May 23, 2010 at 9:15 AM
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RASMATAZ
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RH Rear Of Engine


https://www.2carpros.com/forum/automotive_pictures/12900_os_9.jpg

Fuel Filter Mounting


https://www.2carpros.com/forum/automotive_pictures/12900_ff_14.jpg

The filter is mounted near the fuel tank on the left side frame rail. https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm
May 27, 2010 at 2:03 AM